Effect of different Fungicides against Collar Rot of Groundnut (Arachis hypogaea L.) caused by Aspergillus niger Van Tiegham

Author: Mahendra Kumar Saran* , Dama Ram , J.R. Verma and Anand Choudhary

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Abstract

ABSTRACT: Groundnut is an economic important edible oilseed crop. Seed and soil borne pathogens are the major constraints in production of groundnut, causing poor germination and early mortality of seedling. Collar rot is one of the most destructive diseases of groundnut. To develop effective management strategies for this menacing disease using the different studies such as in vitro evaluation of fungicides and field management through seed dressing fungicides were taken. The result revealed that in vitro Saaf [Carbendazim (12%) + Mancozeb (63%)], Nativo [Tebuconazole 50% + Trifloxystrobin 25%] and Tilth [Propiconazole] showed 100 per cent mycelial growth inhibition at all the concentration (250, 500, 750 & 1000 ppm) and in vivo condition Saaf [Carbendazim (12%) + Mancozeb (63%)] at 2.0 gm/kg (17.00%) followed by Tilth [Propiconazole] at 2.0 ml/lit (19.28%) inhibit maximum fungal growth under field condition as a seed treatment.

Keywords

Keywords: Groundnut, fungicides, in vivo, in vitro, A. niger.

Conclusion

Seven fungicides were evaluated against A. niger at different concentrations in vitro. Among the all, Carbendazim (12%) + Mancozeb (63%), Tebuconazole 50% + Trifloxystrobin 25% and Propiconazole showed 100 per cent mycelial growth inhibition at all the concentration (250, 500, 750 & 1000 ppm), whereas Carboxin (37.5%) + Thiram (37.5%), Carbendazim at 750 & 1000 ppm and Azoxystrobin (18.2%) + Difenoconazole (11.4%) at 1000 ppm recorded 100 per cent mycelia growth inhibition. while Hexaconazole (5%) + Captan (70%) showed least mycelial growth inhibition (65.83, 74.13, 88.11 & 90.13 %) at 250, 500, 750 and 1000 ppm concentrations, respectively. In field condition lowest collar rot severity was observed in seed treated with Carbendazim (12%) + Mancozeb (63%) at 2.0 gm/kg (17.00 %) followed by Propiconazole at 2.0 ml/lit (19.28 %) under field condition whereas, 53.33 per cent disease incidence was recorded.

References

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How to cite this article

Saran, M. K.; Ram, D.; Verma, J. R. and Choudhary, A. (2022). Effect of Different Fungicides Against Collar Rot of Groundnut (Arachis hypogaea L.) caused by Aspergillus niger Van Tiegham. Biological Forum – An International Journal, 14(1): 131-135.